Famine Fast Facts

CNN Library

Updated 2014 GMT (0414 HKT) February 21, 2017

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BAIDOHA, SOMALIA - AUGUST 6: Women and children sit inside a shelter 06 August 1992 at a feeding center run by the International Committee for the Red Cross (ICRC) in Baidoha, Somalia. The shelter was established to feed a few thousand of the 30,000 refugees suffering from famine, severe drought and the effects of 18 months of civil war. (ALEXANDER JOE/AFP/Getty Images)

(CNN)Here is some background information about famine, a severe and prolonged hunger in a significant portion of a region or country's population that results in malnutrition and death by starvation and disease.

Famine can stem from natural causes such as droughts, floods, earthquakes, insect plagues and plant disease. It can also stem from man-made causes such as wars, civil disturbances, sieges and deliberate crop destruction.

Famine results from a triple failure of food production, access to food and response.

Basic Definitions:Undernutrition - The outcome of prolonged insufficient food intake and/or low absorption of food consumed. This generally applies to energy levels, but may also relate to vitamin and mineral deficiencies.

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Undernourishment or Chronic Hunger - The status of persons when food consumption regularly provides less than their minimum energy requirements. The average minimum energy requirement per person is about 1,800 kilocalories (kilocalories are commonly referred to as Calories) per day. (The exact requirement is determined by a person's age, body size, activity level and physiological conditions such as illness, infection, pregnancy and lactation).

Malnutrition - A general term for a range of circumstances that inhibit good health, caused by insufficient or unbalanced food intake or from poor absorption of food consumed. The term refers to both undernutrition (food deprivation) and overnutrition (excessive food consumption with regards to energy requirements).

Food security - Exists when all people at all times have access to sufficient, safe and nutritious food that meets their dietary needs for an active and healthy life.

Food insecurity - Exists when people lack access to sufficient amounts of safe and nutritious food, and therefore do not consume enough for an active and healthy life. The situation may result from unavailability of food, inadequate purchasing power, or inappropriate food distribution at the household level.

Body Mass Index (BMI) is less than 18.5, where prevalence far exceeds 40%.

Extreme inadequacy to meet food consumption requirements.

Less than four liters of safe water available per person per day.

Number and Prevalence (%) of Undernourished in the World:(Source:Food and Agriculture Organization of the United Nations)1990-1992 - 1,010.6 million (18.6% of the world)2000-2002 - 929.6 million (14.9% of the world)2005-2007 - 942.3 million (14.3% of the world)2010-2012 - 820.7 million (11.8% of the world)2014-2016 estimates - 794.6 million (10.9% of the world)

Percentage of the Population in a Condition of Undernourishment:(Source:Food and Agriculture Organization of the United Nations)1990-1992 - 27.6% of Africa, 23.6% of Asia, 14.7% of Latin American and the Caribbean, 15.7% of Oceania2000-2002 - 25.4% of Africa, 17.6% of Asia, 11.4% of Latin American and the Caribbean, 16.5% of Oceania2005-2007 - 22.7% of Africa, 17.3% of Asia, 8.4% of Latin American and the Caribbean, 15.4% of Oceania2010-2012 - 20.7% of Africa, 13.5% of Asia, 6.4% of Latin American and the Caribbean, 13.5% of Oceania2014-2016 estimates - 20.0% of Africa, 12.1% of Asia, 5.5% of Latin American and the Caribbean, 14.2% of Oceania

Timeline of Significant Famines (1900-present):1921-1922 - Famine in the Soviet Union, results in nine million deaths.

1927 - In China (northwest), three to six million perish.

1929 - Famine in China (Hunan Province), results in two million deaths.

1932-1933 - In the Soviet Union (Ukraine), seven to eight million people die.

1943 - Famine in China (Henan), results in three to five million deaths.

1943 - In India (Bengal), 2.1-3 million perish.

1946-1947 - In the Soviet Union, two million people die.

1959-1961 - Famine in China results in 15-30 million deaths.

1974 - In Bangladesh, 1.5 million perish.

1975-1979 - Famine in Cambodia results in 1.5-2 million deaths.

1984-1985 - Ethiopian famine, affects more than eight million people and results in approximately one million deaths.

1991-1993 - Somalia famine, after the government's fall and civil war, affects more than three million people.

1998-2011 -Sudan/Darfur/South Sudan famine brought on by an ongoing civil war, drought and disease. More than two million people are affected.

2008 - The United Nations officially declares famine for the first time. In two areas of southern Somalia, famine caused by drought, theft of food shipments by rebels, civil war, and an influx of refugees in other war torn nations is declared; 3.7 million people are affected.

July 20, 2011 - The United Nations declares famine in parts of southern Somalia.

September 5, 2011 - The United Nations announces that famine has spread to the sixth area in Somalia and about 750,000 people are in danger of imminent starvation.